A
The Pyramids are an example of these 2 types of structures
Manufactured and mass structures
What are the 4 types of internal forces
- torsion
- tension
- compression
- shear
a joint that does not move is called a...
fixed joint
This process involved glueing multiple layers of material together in order to make it stronger
lamination
The changing number of students in a classroom is an example of this type of load.
Dynamic load
Some houses have flat roofs while others are slanted. Although they look different they have similar functions. Name at least 2 factors/conditions as to why you would choose one type over the other
Climate and weather conditions
Materials available
Aesthetic
Cost
What can be said about the center of gravity of an object if falls over after a light push.
The center of gravity is too high
This happens when a structures shape is permanently changed
deformation
Why are cars designed to go 150km/h when speed limits rarely let you go faster than 100
Because they build in a margin or safety
confederation bridge
All structures can be placed into 4 different categories.
what are the 4 different types of structures- include an example of each
Mass- pyramids or sand dune
shell - water bottle or snail shell
frame - skeleton or bike
combination - house (frame, shell)
Force is measured using this unit of measurement, and can be measured using this device
Newton (N)
Spring scale
Brittleness
hardness/softness
plasticity
weather resistance
flexibility
there are 2 mains ways that humans have gone about improving our designs. What are they.
Test for safety and improve
observe for safety and improve
Materials can be joined together in 3 ways, what are they?
friction
bonding
mass
where do we often find inspiration for our structures and designs
A heavy wind blowing over a truck or a elephant walking across a bridge are an example of this type of force
External force
Materials used can be chosen for reasons other than stability. What are some properties that a designer might look at that will have little impact on stability
cost
aesthetic
availability
safety
environmental impact
there are 4 common ways to improve stability/strength what are they
corrugation
lamination
strengthening fastening material
strengthening arrangement of materials
What should be considered when building any structure
safety
answers will vary
Arches, columns/pillars and beams are used in construction to ...
Resist internal and external forces applied to them
A structures ability to bend and stretch without breaking
flexibility
If a structures collapse what happend next
determine the cause and then fix any other structures that may have similar issues
This structure in Calgary is considered an art piece but many do not see it that way
the blue ring